#include <iostream>
#include <string>
using namespace std;

int main()
{
	string s = "gggggg hhhh&";
	string s1 = "llll";
	cout << s << endl;
	s.insert(0,s1);
	cout << "+s1 : " << s << endl;
	s.insert(9,"     ");
	cout << "    : " << s << endl;
	s.insert(10,3,'0');
	cout << "0 : " << s << endl;
	
	return 0;
}
